• Corpus ID: 14649472

A Comparison of STPA and the ARP 4761 Safety Assessment Process 1

  title={A Comparison of STPA and the ARP 4761 Safety Assessment Process 1},
  author={Chris Wilkinson and Honeywell Cody Fleming},
component of the NASA Aviation Safety Program under contract NNL10AA13C. The views and conclusions in this report are those of the authors alone. Approval by NASA as a NASA Technical Report is still in process. 2 Electronic versions of this technical report can be obtained from 

A New Approach to Hazard Analysis for Rotorcraft

To demonstrate and evaluate STPA for its application to rotorcraft, it was used to analyze the UH-60MU Warning, Caution, and Advisory (WCA) system associated with the electrical and fly-by-wire flight control system (FCS).

Using STPA in an ISO 26262 Compliant Process

This paper analyzes how STPA can be used in an ISO 26262 compliant process and provides an excerpt of the application of STPA on an automotive subsystem as per the concept phase ofISO 26262.

Using STPA to inform developmental product testing

Developmental product testing currently evaluates system safety the same way it evaluates system performance: it attempts to isolate individual components’ behaviors to evaluate their reliability.

A Redundancy-Guided Approach for the Hazard Analysis of Digital Instrumentation and Control Systems in Advanced Nuclear Power Plants

The development of a redundancy-guided application of the Systems-Theoretic Process Analysis and fault tree analysis for the hazard analysis of digital I&C in advanced NPPs and the resulting Redundancy-Guided Systems- theoretic Hazard Analysis (RESHA) is applied for a representative state-of-the-art digital reactor trip system.

A comparison of hazard analysis methods capability for safety requirements generation

This paper compares two hazard analysis methods, which are often considered well-suited for such software-intensive systems: the Functional Hazard Analysis (FHA) and Systems-Theoretic Process Analysis (STPA), and concludes that STPA is the better choice over FHA.

Systems Theoretic Process Analysis applied to an Offshore Supply Vessel dynamic positioning system

Thesis: S.M. in Engineering Systems, Massachusetts Institute of Technology, School of Engineering, Institute for Data, Systems, and Society, 2016.

Safety Analysis in Early Concept Development and Requirements Generation

  • N. Leveson
  • Computer Science
    INCOSE International Symposium
  • 2018
This paper shows how a new hazard analysis technique, STPA (System Theoretic Process Analysis), can be used to generate high‐level safety requirements early in the concept development phase that can

System theoretic process analysis of electric power steering for automotive applications

The automotive industry is constantly challenged with meeting and exceeding customer expectations while reducing time to market of new products in order to remain competitive. Providing new features

Documentation of assumptions and system vulnerability monitoring : the case of System Theoretic Process Analysis (STPA)

The assumption groups derived in this study can assist users of STPA and other hazard analysis techniques in the recognition and documentation of assumptions and render their analysis results more credible and transparent.

A controlled experiment for the empirical evaluation of safety analysis techniques for safety-critical software

STPA seems to be an effective method to identify software safety requirements at the system level, but it needs more time to carry out by safety analysts with little or no prior experience.



Certification concerns of Integrated Modular Avionics (IMA) systems

The pace of technological advances in the area of integrated modular avionics (IMA) is progressing at a breakneck speed. The FAA is concerned that the complexity of these IMA systems and the

Role of Software in Spacecraft Accidents

Several software-related spacecraft accidents were studied to determine common systemic factors that related to flaws in the safety culture, the management and organization, and technical deficiencies that were identified.

Improving Hazard Analysis and Certification of Integrated Modular Avionics

Systems-theoretic process analysis is extended in this paper to account for behavior that emerges when software applications share data, which is a requirement in aircraft systems.

Aviation Automation: The Search for A Human-centered Approach

This volume offers eloquent and carefully reasoned arguments for a human-centered approach to the development and implementation of new technology in aviation. Part I is an overview of automation in


In this article, reuse is defined simply as using previously existing software artifacts as part of the process of creating software systems from predefined software components.

Extending and automating a systems-theoretic hazard analysis for requirements generation and analysis

A formal mathematical structure underlying STPA is defined and a procedure for systematically performing an STPA analysis based on that structure is described, and a method for using the results of the hazard analysis to generate formal safety-critical, model-based system and software requirements is presented.

Application of STPA to the integration of multiple control systems : a case study and new approach

A new approach for analyzing multiple control systems within the STPA framework has been developed and demonstrated. The new approach meets the growing need of system engineers to analyze integrated

An integrated approach to safety and security based on systems theory

Applying a more powerful new safety methodology to security risks is applied and shows clear signs of improvement in the quality of data and in the predictability of outcomes.

Extending the Human Controller Methodology in Systems-Theoretic Process Analysis ( STPA )

The goal of this thesis was to extend the current human-controller analysis in STPA to benefit the investigation of more structured and detailed causal factors related to the human operator and propose a new methodology structured around process states that applies equally as well to an automated controller.